Katy Perry

Taylor,Katie and other new tunes hit the airwaves this week!

The return of Katy Perry and other new jams hit the airwaves this week!

T-Swizz is back with an awesome new song, now playing on Z-107.3

We've got a doppelganger in our midst!

Watch the hilariously wild 'Earth' video featuring Justin Bieber, Ariana Grande, Ed Sheeran, Katy Perry and Brendon Urie as animals.

Remember when Kanye West called Taylor Swift out for lying?

Johanna Jones got surprise proposed to during Hollywood Week on 'American Idol' and it was so sweet.

Two killer collaborations and a new tune from a budding superstar!

Find out how Rihanna, Ariana Grande and more stars celebrated the holidays this year.

It's been a wild ride for Hollywood romances.